MAYBE
222.12/56.58	MAYBE
222.12/56.60	
222.12/56.60	Problem:
222.12/56.60	 b(b(x1)) -> b(a(b(a(a(b(x1))))))
222.12/56.60	 b(b(a(b(x1)))) -> b(a(b(b(x1))))
222.12/56.60	 b(a(a(a(b(a(a(b(x1)))))))) -> b(a(a(a(b(b(x1))))))
222.12/56.60	 b(b(a(a(b(x1))))) -> b(a(a(b(b(x1)))))
222.12/56.60	
222.12/56.60	Proof:
222.12/56.60	 Open
222.12/56.60	EOF